According to my dealer launch info pack
** the gearbox's are the same, as is the quoted power output, Torque etc etc.
In fact looking at the figures the only difference I can find is the kerb weight.
The kerb weights are listed as follows......
1.8 i-
vtec SE = 1251kg
1.8 i-
vtec Sport = 1266kg
1.8 i-
vtec ES = 1288kg
1.8 i-
vtec EX = 1284kg
Talking to my dealer (and Honda themselves) the different models currently available are only "Trim levels" and the performance is the same. All cars share the same engine and gearbox (including ratios). they also share the exact same suspension layout & setup. According the mags the Sport and EX corner faster (and ride slightly firmer) due to thier wider 17" rims. The only handling difference though.
The performance models will launch with the 3 door body shell at this years London motorshow. (Including the production Type-R apparently).
**White card slip case with 2 books in it. One the brochure (with clean white embosed cover) and the other a special image book with real peices of material etc. Pressie from my dealer for having the first car delivered. Its very different to the other brochures available as it was produced for the dealers themselves to intorduce the car to them.